How Can I Make A Console Application In C# To Detect Usb Devices

Hi Ridoy,
Dude i am done with the detection of the usb device ,, now i want that to classify the inserted device according to their product id , vendor id . please help me through code ..

Hi Ridoy ,, Thanks for those links provided by you . With your help I made this :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Diagnostics.Contracts;
using System.IO.Ports;
using System.Management;
using System.Management.Instrumentation;
using System.IO;

namespace USBDetactor
{
class Program
{
static void Main(string[] args)
{
AddInsertUSBHandler();
AddRemoveUSBHandler();
while (true)
{
}

}
static ManagementEventWatcher w = null;

static void AddRemoveUSBHandler()
{

WqlEventQuery q;
ManagementScope scope = new ManagementScope("root\\CIMV2");
scope.Options.EnablePrivileges = true;

try
{

q = new WqlEventQuery();
q.EventClassName = "__InstanceDeletionEvent";
q.WithinInterval = new TimeSpan(0, 0, 3);
q.Condition = "TargetInstance ISA 'Win32_USBControllerdevice'";
w = new ManagementEventWatcher(scope, q);
w.EventArrived += USBRemoved;

w.Start();
}
catch (Exception e)
{


Console.WriteLine(e.Message);
if (w != null)
{
w.Stop();

}
}

}

static void AddInsertUSBHandler()
{

WqlEventQuery q;
ManagementScope scope = new ManagementScope("root\\CIMV2");
scope.Options.EnablePrivileges = true;

try
{

q = new WqlEventQuery();
q.EventClassName = "__InstanceCreationEvent";
q.WithinInterval = new TimeSpan(0, 0, 3);
q.Condition = "TargetInstance ISA 'Win32_USBControllerdevice'";
w = new ManagementEventWatcher(scope, q);
w.EventArrived += USBInserted;

w.Start();
}
catch (Exception e)
{

Console.WriteLine(e.Message);
if (w != null)
{
w.Stop();
}
}

}

static void USBInserted(object sender, EventArgs e)
{

Console.WriteLine("A USB device inserted");
Logger logevents = new Logger();
var devices=logevents.GetUSBDevices();
logevents.LogInfo("DEVICE INSERTED " + Environment.NewLine + " TIME: " + DateTime.Now, devices);
}

static void USBRemoved(object sender, EventArgs e)
{
Console.WriteLine("A USB device removed");
Logger logevents = new Logger();
var devices = logevents.GetUSBDevices();
logevents.LogInfo("DEVICE REMOVED " + Environment.NewLine + " TIME: " + DateTime.Now, devices);
}
public static void RetrieveUSBDevices(int vid, int pid)
{
var usbFinder = new UsbDeviceFinder(vid, pid); //// Error 1 : The type or namespace name 'UsbDeviceFinder' cnnot be found(are you missing a using directive or assembly reference.)

var usbDevices = new UsbRegDeviceList(); /////// Error 2 : The type or namespace name 'UsbRegDeviceList' cnnot be found(are you missing a using directive or assembly reference.)

var en = usbDevices.GetEnumerator();

while (en.MoveNext())
{
Console.WriteLine(en.ToString());
}


}

}
}
Please suggest me what is my fault and how can i handle these things ...